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The Effect on Physician Interpretation after Ultrasound Video Transmission

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Open Journal of Emergency Medicine 2017年第2期5卷 25-36页

作者： Eric Zevallos Joseph Coppiano Ann Marie Kuchinski Taylor Mueller bradley white Patrick Loeffler Zachary Farmer Patricia Hall Matt Lyon Emergency Medicine and Hospitalist Services Department Medical College of Georgia Augusta Georgia USA

Title: The Effect on Physician Interpretation After Ultrasound Video Transmis-sion. Objective: There is a limited amount of qualified sonographers, which is problematic to rural, and prehospital settings that require clinical ultrasound. One solution is the use of telemedicine to transmit ultrasound videos to a distant expert. Our objective was to determine the effect of video image transfer using Skype on physician image interpretation. Methods: Three emergency medicine physicians of varied ultrasound proficiency were given 72 pairs of transmitted and non-transmitted ultrasound video clips in random order. Raters were instructed to determine whether ultrasound clips were positive or negative for pathology. Same interpretations between video pairs were categorized as homodiagnostic while different interpretations were categorized as heterodiagnostic. Raters were also asked to rate the image resolution, image detail, and total image quality using a 10-point Likert scale. For the diagnostic results, rater agreement, accuracy, sensitivity, and specificity were calculated. Results: The raters collectively demonstrated high agreement (92.1%), sensitivity (96.3%), specificity (92.8%), and accuracy (94.1%). Raters 1 (95.8%, κ = 0.912) and 3 (97.2%, κ = 0.942) had near perfect agreement, while rater 2 (83.3%, κ = 0.666) had substantial agreement. Only raters 1 and 3 detected a decrease in image resolution, image detail, and total image quality (p Conclusions: This study demonstrates that transmission via Skype has minimal effect on a physician’s interpretation of an ultrasound video. The implications of these results are that ultrasound video transmission can be used to improve access to specialists without compromising accuracy which will ultimately increase patients’ quality of care.

关键词： Ultrasound Telemedicine Emergency Medicine Transmission Skype

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RAPD标记在丁香分类鉴定中的应用

RAPD标记在丁香分类鉴定中的应用

Facile Synthesis of BCNO Yellow-Emitting Phosphors Applications for white LEDs by Microwave Heating

中国科学技术协会第二届青年学术年会

作者：陈新露赵祥云 bradley N．white James S．Pringle 北京农学院园林系 McMaster大学生物系皇家植物园

本文采用RAPD技术对欧丁香(Syringa vulgaris),S．x hyacinthiflora和S．x prestoniae等 10个品种进行分类鉴定研究。用17个引物共扩增出96个位点,平均每个引物产生6个位点,其中重现的多态位点和单态位点分别是46个(48．0％)和7个(7．2... 详细信息

本文采用RAPD技术对欧丁香(Syringa vulgaris),S．x hyacinthiflora和S．x prestoniae等 10个品种进行分类鉴定研究。用17个引物共扩增出96个位点,平均每个引物产生6个位点,其中重现的多态位点和单态位点分别是46个(48．0％)和7个(7．2％),这些位点用作分类鉴定的分子行性状。用PAUP分析计算出品种间遗传距离,并获得品种间谱系树状图。研究表明,RAPD技术在丁香分类鉴定中是一种行之有效的方法。

关键词：丁香品种 RAPD标记分类鉴定谱系关系

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Acta Metallurgica Sinica(English Letters) 2017年第2期30卷 113-119页

作者： Yan-Fang Yang Jing-Jing Chen Zhi-Yong Mao Guang-Hao Li Jiao Xu Da-Jian Wang bradley D.Fahlman Tianjin Key Laboratory for Photoelectric Materials and Devices School of Materials Science and EngineeringTianjin University of Technology Department of Chemistry and Biochemistry Science of Advanced Materials ProgramCentral Michigan University

Yellow-emitting BCNO phosphors,applied for white light-emitting-diodes（LEDs）,were synthesized by a facile microwave heating route at lower temperature within short *** prepared BCNO phosphors exhibited amorphous form and tunable yellow emission in the range of 510–550 nm under the excitation of 450-nm blue *** effects of carbon content on the photoluminescence properties for these BCNO phosphors and their application performances in white LEDs were investigated in *** demonstrated microwave synthesis route is promising in preparing low-cost phosphors,and the prepared BCNO phosphor may find potential application in blue-based white LEDs.

关键词： BCNO phosphors Photoluminescence Microwave heating white LEDs

Use of Three Dimensional Conformal Radiation Therapy for Node Positive Breast Cancer Does Not Result in Excess Lung and Heart Irradiation

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International Journal of Medical Physics, Clinical Engineering and Radiation Oncology 2017年第1期6卷 1-9页

作者： Phillip Prior Irina Sparks J. Frank Wilson Joseph Bovi Adam Currey Julie bradley Tracy Kelly X. Allen Li Julia R white Department of Radiation Oncology Medical College of Wisconsin Milwaukee WI USA Department of Radiation Oncology Ohio State University Columbus OH USA

Purpose: This work evaluates the use of target and organs at risk (OAR) dose-volume goals in 3D conformal radiotherapy (3DCRT) planning for node positive breast cancer (NPBC) patients undergoing regional nodal irradiation after lumpectomy/mastectomy. Methods: Dosimetric data for 262 NPBC patients receiving regional nodal and whole breast/chest wall (WB/CW) irradiation from 2000-2009 were analyzed. In all cases, target & OAR volumes were delineated on treatment CT scans for field generation and dose-volume histograms (DVHs) were generated. Cases were analyzed to identify how frequently they met treatment planning institutional dose-volume goals (“institutional guidelines” & standardized in 2005) and how this would affect OAR doses. Results: The incidence of cases from 2000-2009 meeting current institutional guidelines improved over the study period. Target coverage improved from 2005-2009, when guidelines were followed as a part of the plan approval. Those cases from 2000-2004 meeting acceptable target goals were found to be significantly different from those cases from 2005-2009 (p < 0.01). However, no significant difference between cases meeting OAR goals for plans from 2000-2004 versus 2005-2009 was found. Conclusions: The use of institutional guidelines in 3DCRT for WB/CW and regional nodal irradiation for NPBC patients improved target coverage without a statistically significant increase in heart and lung doses.

关键词： Node Positive Breast Cancer Dose-Volume Goals Target Coverage CT Based Planning

Intraspecific temporal resource partitioning at white-tailed deer feeding sites

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Current Zoology 2019年第2期65卷 139-146页

作者： David B. STONE James A. MARTIN bradley S. COHEN Thomas J. PREBYL Charlie KILLMASTER Karl V. MILLER Warnell School of Forestry and Natural Resources University of Georgia Athens GA USA Savannah River Ecology Lab University of Georgia Aiken SC USA Department of Biology Tennessee Technological University Cookeville TN USA Georgia Department of Natural Resources Atlanta GA USA

Individuals may reduce competition by temporally partitioning their use of a shared resource. Behavioral differences between sexes in ungulates may encourage segregation as individuals attempt to avoid antagonistic interactions. However, dominant sex and age groups may reduce subordinates' access to food resources, regardless of the subordinate's sex. We hypothesized that white-tailed deer Odocoileus Virginian us temporally segregated at supplemental feedi ng sites based on social rank (subordinate: yearling males and adult females;dominant: adult males) and that segregation was affected by phase of the breeding season and diel cycle. If deer temporally segregate according to social rank, we predicted that the resulting activity patterns would manifest in one social class being relatively more susceptible to hunter-induced mortality. We used a multistate modeling approach to quantify temporal segregation and calculated the probability that a feeding site was in a particular state during diurnal and nocturnal hours for each of the 3 phases of the breeding season. We determined that transition probabilities differed by season and diel cycle and dominant and subordinate social classes clearly avoided each other, with <1% co-occurrenee at feedi ng sites. During the pre-breedi ng seas on, the probability of a subordi nate being present during diurnal hours was *** more likely than a dominant being present, but did not differ during nocturnal hours. There was no difference for dominants and subordinates during diurnal or no cturnal hours during the breedi ng season .In the post-breedi ng season, subordi nates were 1.7x more likely to occur at the feeding site than a dominant during diurnal hours but they did not differ during nocturnal hours. Our results indicate that dominance status influences temporal segregation at feeding sites and is affected by the phase of the breeding season. Therefore, the resulti ng activity patterns may in crease subordi nates' risk to human

关键词： competition multistate modeling predation risk supplemental feeding sites intraspecific temporal resource partitioning white-tailed deer

尿钠排泄昼夜节律与高血压、阻塞性睡眠呼吸暂停的关系

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中华高血压杂志 2014年第12期22卷 1122-1122页

作者：刘莉叶鹏 white LH bradley TD Logan AG

阻塞性睡眠呼吸暂停（obstructive sleep apnoea,OSA）与高血压常常并存,两者均与夜间尿钠排泄率（urine sodium excretion rate,UNaV）较白天高相关。然而,其中的具体机制尚不清楚。研究人员比较伴或不伴有OSA的高血压患者和正常血压者... 详细信息

阻塞性睡眠呼吸暂停（obstructive sleep apnoea,OSA）与高血压常常并存,两者均与夜间尿钠排泄率（urine sodium excretion rate,UNaV）较白天高相关。然而,其中的具体机制尚不清楚。研究人员比较伴或不伴有OSA的高血压患者和正常血压者UNaV的昼夜节律差异。

关键词：阻塞性睡眠呼吸暂停高血压患者昼夜节律尿钠排泄正常血压研究人员排泄率 OSA

Patterns of color phase indicate spawn timing at a Nassau grouper Epinephelus striatus spawning aggregation

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Current Zoology 2012年第1期58卷 73-83页

作者： Archer, Stephanie K. skraftarcher@*** Heppell, Scott A. Semmens, Brice X. Pattengill-Semmens, Christy V. Bush, Phillippe G. Mccoy, Croy M. Johnson, bradley C. Department of Fisheries and Wildlife 104 Nash Hall Oregon State University Corvallis OR 97331 USA Reef Environmental Education Foundation (REEF) PO Box 246 Key Largo Fl 33037 USA Department of Environment Cayman Islands Government P.O. Box 486GT Grand Cayman Cayman Islands

Nassau grouper Epinephelus striatus are a large bodied, top level predator that is ecologically important throughout the Caribbean. Although typically solitary, Nassau grouper form large annual spawning aggregations at predictable times in spe- cific locations. In 2003, The Cayman Islands Marine Conservation Board established protection for a newly rediscovered Nassau grouper spawning aggregation on Little Cayman, British West Indies. The large size of this aggregation provides a unique oppor- tunity to study the behavior of Nassau grouper on a relatively intact spawning aggregation. During non-spawning periods Nassau grouper display a reddish-brown-and-white barred coloration. However, while aggregating they exhibit three additional color phases：＂bicolor＂, ＂dark＂, and ＂white belly＂. We video sampled the population on multiple days leading up to spawning across five spawning years. Divers focused a laser caliper equipped video camera on individual fish at the aggregation. We later ana- lyzed the video to determine the length of the fish and record the color phase. Our observations show that the relative proportion of fish in the bicolor color phase increases significantly on the day leading up to the primary night of spawning. The increase in the proportion of the bicolor color phase from 0.05 early in the aggregation to 0.40 on the day of spawning suggests that this color phase conveys that a fish is behaviorally and physiologically prepared to spawn. Additionally, 82.7% of fish exhibiting dark or white belly coloration early in the aggregation period suggests that these color phases are not only shown by female fish as was previously posited [Current Zoology 58 （1）： 73-83, 2012].

关键词： Nassau grouper Epinephelus striatus Spawning aggregation Nuptial coloration Spawning behavior

Burn recidivism:a 10-year retrospective study characterizing patients with repeated burn injuries at a large tertiary referral burn center in the United States

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Burns & Trauma 2019年第1期7卷 75-84页

作者： Sarah L.Laughon bradley N.Gaynes Lori P.Chrisco Samuel W.Jones Felicia N.Williams Bruce A.Cairns Gary J.Gala Department of Psychiatry 101 Manning DriveCB#7160Chapel HillNC 27599-7160USA Department of Surgery 4001 Burnett-Womack BuildingCB#7050Chapel HillNC 27599-7050USA North Carolina Jaycee Burn Center 101 Manning DriveCB#7206Chapel HillNC 27599-7600USA

Background:Psychiatric and substance use disorders are common among trauma and burn patients and are known risk factors for repeat episodes of trauma,known as trauma *** epidemiology of burn recidivism,specifically,has not been *** study aimed to characterize cases of burn recidivism at a large US tertiary care burn center and compare burn recidivists(RCs)with non-recidivists(NRCs).Methods:A 10-year retrospective descriptive cohort study of adult burn patients admitted to the North Carolina Jaycee Burn Center was conducted using data from an electronic burn registry and the medical *** variables were reported using medians and interquartile ranges(IQR).Chi-square and Wilcoxon-Mann-Whitney tests were used to compare demographic,burn,and hospitalization characteristics between NRCs and ***:A total of 7134 burn patients were admitted,among which 51(0.7%)were RCs and accounted for 129(1.8%)*** the 51 RCs,37 had two burn injuries each,totaling 74 admissions as a group,while the remaining 14 RCs had between three and eight burn injuries each,totaling 55 admissions as a *** to NRCs,RCs were younger(median age 36 years vs.42 years,p=0.02)and more likely to be white(75%vs.60%,p=0.03),uninsured(45%vs.30%,p=0.02),have chemical burns(16%vs.5%,p<0.0001),and have burns that were≤10%total body surface area(89%vs.76%,p=0.001).The mortality rate for RCs *** did not differ(0%vs.1.2%,p=0.41).Psychiatric and substance use disorders were approximately five times greater among RCs compared to NRCs(75%vs.15%,p<0.001).Median total hospital charges per patient were nearly three times higher for RCs ***($85,736 vs.$32,023,p<0.0001).Conclusions:Distinct from trauma recidivism,burn recidivism is not associated with more severe injury or increased *** to trauma recidivists,but to a greater extent,burn RCs have high rates of comorbid psychiatric and medical conditions that contribute to increased health care u

关键词： Burn recidivism Consult psychiatry Substance use disorder Repeat burn injury

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一种基于层选择的弥散张量优化算法

东南大学学报（自然科学版） 2013年第1期43卷 30-34页

作者：刘薇周振宇刘小征严序杨光王遵亮周永迪 Peterson bradley S 徐冬溶华东师范大学脑功能基因组学教育部重点实验室上海200062 华东师范大学上海市磁共振重点实验室上海200062 哥伦比亚大学精神病学系纽约10032 纽约州立精神疾病研究所纽约10032 东南大学生物科学与医学工程学院南京210096

为了从带伪影的弥散加权数据中重建更准确的张量,提出了一种基于层选择的张量优化算法.首先对弥散加权图像中常见的3种伪影(波状、层间运动和对比度伪影)进行定性分析,分别提取3种对应的特征(小波标记、相似度和相关性)来识别这些伪影,... 详细信息

为了从带伪影的弥散加权数据中重建更准确的张量,提出了一种基于层选择的张量优化算法.首先对弥散加权图像中常见的3种伪影(波状、层间运动和对比度伪影)进行定性分析,分别提取3种对应的特征(小波标记、相似度和相关性)来识别这些伪影,从而区分出正常图层和伪影图层.然后,利用正常图层数据进行张量重建.模拟实验结果验证了这3种特征对弥散加权图像中相关伪影判断的有效性,且对波状伪影和层间运动伪影的判断率均大于90%.真实数据实验结果表明,与类似算法相比,所提算法可以更好地改善部分各向异性伪彩图中的偏色现象,在白质结构分析中提供了更准确的方向信息.

关键词：弥散加权成像弥散张量成像张量优化小波标记互信息灰度共生矩阵